How To Maintain Your Rainwater Harvesting System

  1. Rooftops - Rooftops should be cleaned regularly to avoid contamination of the runoff. During dry weather, dust, leaves, animal excrement and dead insects accumulate on the roof.  Make sure that the roof is cleaned before the rainy season starts, followed by a monthly check to keep it clean.
  2. Overhanging Branches - Check that branches overhanging the roof are regularly trimmed back.
  3. Gutters - Ensure that the gutters are free from leaves - consider installing gutter mesh.
  4. Pre-Filtration - Regularly check the pre-filtration device/s to ensure that it is free from leaves and that rainwater can pass through.
  5. Tank Screen - If there is a tank screen below the lid of the tank, clean it if full of debris.
  6. First Flush Diverter - If a first flush diverter is installed, check and clean it out on a monthly basis.
    Ensure the diverter is dripping out sufficiently to reset the system.
  7. Keeping your tank Clean - Inspect the inside of the tank every 3 months to make sure that leaf litter has not built up in the bottom of the tank. A properly designed system should not allow leaves and other material to get into the tank.
  8. Water Quality – Please remember that water collected from a roof will not be clean. If the intent is to use the rainwater for drinking purposes, consult an installer with experience in installing water filtration systems. For irrigation purposes however, the water would be perfect.